SOUTH DEERFIELD — Former Congressman John Olver urged Frontier Regional School’s Class of 2013 Friday night to “strive to leave a world better for your children than the one we, the older generation, leave to you.”

Before the 95 graduating seniors from southern Franklin County, Olver, a 22-year Washington veteran, reminded students that change was enduring and a phenomenon they have already experienced.

Twenty years ago, the Internet was just being invented. And now email has morphed into Twitter and people can communicate instantly with anyone across the world, Olver said.

“History certainly shows us that human beings can be flexible,” Olver said. “Most of us don’t know how an iPhone works, but we use it with moderate skill.”

With climate change becoming one of the most compelling issues, Olver advised graduates to work with one another and people across the world to find a solution.

As the students entered the school they called home for seven years —some tying helium balloons to their hats and others decorating their caps with their future colleges — Olver urged them to visit again.

“I hope Frontier inspired you to reach as high as you could go,” Olver said. “You’ll look back on your time here as wonderful years. In the same ways, these years provided shelter. Now the shelter goes away. Hopefully, all of you will find rewarding jobs and professions that will take you beyond.”